1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 27 /* All Rights Reserved */ 28 29 /* 30 * Portions of this source code were derived from Berkeley 4.3 BSD 31 * under license from the Regents of the University of California. 32 */ 33 34 #ifndef _SYS_CRED_H 35 #define _SYS_CRED_H 36 37 #include <sys/types.h> 38 39 #ifdef __cplusplus 40 extern "C" { 41 #endif 42 43 /* 44 * The credential is an opaque kernel private data structure defined in 45 * <sys/cred_impl.h>. 46 */ 47 48 typedef struct ucred cred_t; 49 50 #define CRED() curthread->td_ucred 51 #define kcred (thread0.td_ucred) 52 53 #define KUID_TO_SUID(x) (x) 54 #define KGID_TO_SGID(x) (x) 55 #define crgetuid(cred) ((cred)->cr_uid) 56 #define crgetruid(cred) ((cred)->cr_ruid) 57 #define crgetgid(cred) ((cred)->cr_gid) 58 #define crgetgroups(cred) ((cred)->cr_groups) 59 #define crgetngroups(cred) ((cred)->cr_ngroups) 60 #define crgetsid(cred, i) (NULL) 61 62 struct proc; /* cred.h is included in proc.h */ 63 struct prcred; 64 struct ksid; 65 struct ksidlist; 66 struct credklpd; 67 struct credgrp; 68 69 struct auditinfo_addr; /* cred.h is included in audit.h */ 70 71 extern int ngroups_max; 72 /* 73 * kcred is used when you need all privileges. 74 */ 75 76 extern void cred_init(void); 77 extern void crfree(cred_t *); 78 extern cred_t *cralloc(void); /* all but ref uninitialized */ 79 extern cred_t *cralloc_ksid(void); /* cralloc() + ksid alloc'ed */ 80 extern cred_t *crget(void); /* initialized */ 81 extern void crcopy_to(cred_t *, cred_t *); 82 extern cred_t *crdup(cred_t *); 83 extern void crdup_to(cred_t *, cred_t *); 84 extern cred_t *crgetcred(void); 85 extern void crset(struct proc *, cred_t *); 86 extern void crset_zone_privall(cred_t *); 87 extern int supgroupmember(gid_t, const cred_t *); 88 extern int hasprocperm(const cred_t *, const cred_t *); 89 extern int prochasprocperm(struct proc *, struct proc *, const cred_t *); 90 extern int crcmp(const cred_t *, const cred_t *); 91 extern cred_t *zone_kcred(void); 92 93 extern gid_t crgetrgid(const cred_t *); 94 extern gid_t crgetsgid(const cred_t *); 95 96 #define crgetzoneid(cr) ((cr)->cr_prison->pr_id) 97 extern projid_t crgetprojid(const cred_t *); 98 99 extern cred_t *crgetmapped(const cred_t *); 100 101 102 extern const struct auditinfo_addr *crgetauinfo(const cred_t *); 103 extern struct auditinfo_addr *crgetauinfo_modifiable(cred_t *); 104 105 extern uint_t crgetref(const cred_t *); 106 107 extern const gid_t *crgetggroups(const struct credgrp *); 108 109 110 /* 111 * Sets real, effective and/or saved uid/gid; 112 * -1 argument accepted as "no change". 113 */ 114 extern int crsetresuid(cred_t *, uid_t, uid_t, uid_t); 115 extern int crsetresgid(cred_t *, gid_t, gid_t, gid_t); 116 117 /* 118 * Sets real, effective and saved uids/gids all to the same 119 * values. Both values must be non-negative and <= MAXUID 120 */ 121 extern int crsetugid(cred_t *, uid_t, gid_t); 122 123 /* 124 * Functions to handle the supplemental group list. 125 */ 126 extern struct credgrp *crgrpcopyin(int, gid_t *); 127 extern void crgrprele(struct credgrp *); 128 extern void crsetcredgrp(cred_t *, struct credgrp *); 129 130 /* 131 * Private interface for setting zone association of credential. 132 */ 133 struct zone; 134 extern void crsetzone(cred_t *, struct zone *); 135 extern struct zone *crgetzone(const cred_t *); 136 137 /* 138 * Private interface for setting project id in credential. 139 */ 140 extern void crsetprojid(cred_t *, projid_t); 141 142 /* 143 * Private interface for nfs. 144 */ 145 extern cred_t *crnetadjust(cred_t *); 146 147 /* 148 * Private interface for procfs. 149 */ 150 extern void cred2prcred(const cred_t *, struct prcred *); 151 152 /* 153 * Private interfaces for Rampart Trusted Solaris. 154 */ 155 struct ts_label_s; 156 extern struct ts_label_s *crgetlabel(const cred_t *); 157 extern boolean_t crisremote(const cred_t *); 158 159 /* 160 * Private interfaces for ephemeral uids. 161 */ 162 #define VALID_UID(id, zn) \ 163 ((id) <= MAXUID || valid_ephemeral_uid((zn), (id))) 164 165 #define VALID_GID(id, zn) \ 166 ((id) <= MAXUID || valid_ephemeral_gid((zn), (id))) 167 168 extern boolean_t valid_ephemeral_uid(struct zone *, uid_t); 169 extern boolean_t valid_ephemeral_gid(struct zone *, gid_t); 170 171 extern int eph_uid_alloc(struct zone *, int, uid_t *, int); 172 extern int eph_gid_alloc(struct zone *, int, gid_t *, int); 173 174 extern void crsetsid(cred_t *, struct ksid *, int); 175 extern void crsetsidlist(cred_t *, struct ksidlist *); 176 177 extern struct ksidlist *crgetsidlist(const cred_t *); 178 179 extern int crsetpriv(cred_t *, ...); 180 181 extern struct credklpd *crgetcrklpd(const cred_t *); 182 extern void crsetcrklpd(cred_t *, struct credklpd *); 183 184 #ifdef __cplusplus 185 } 186 #endif 187 188 #endif /* _SYS_CRED_H */ 189